Design Engineering has the most experienced NDT & Welding team in New Zealand. Starting in 1991 the DE team has over 100 years combined experience with the latest & best equipment to use which means we are the most efficient inspection Company you can get and No 1 for service to look after your valuable assets, staff and inspection work.
Weld Testing
- Third Party Weld & Fabrication Compliance Inspection
- Structural Steel Weld inspection
- Inspection Test Plans (ITP)
- International steel fabrication compliance monitoring.
- Certified Welding Inspection
Ultrasonics (UT) & Phase Array (PA)
Ultrasonic Examination of Metals
i. Wrought Products
- Aluminium Alloys
- Ferrous Metals
ii. Welded Joints
- Aluminium Alloys
- Ferrous Metals (incl. Stainless)
iii. Castings
- Aluminium Alloys
- Ferrous Metals
iv. Forgings
- Ferrous Metals
Ultrasonic Examination of Components & Assemblies
i. Bonded assemblies such as bearings for bond failure
ii. Thickness measurements
Manual Phased Array
(ii) Welded joints Al, Fe, SS
Radiography including Gamma & X-Ray
Radiographic Examination of Metals
i. Welded Joints
- Aluminium Alloys
- Ferrous Metals
ii. Castings
- Stainless Steel
Eddy Current
Non Destructive Tests by Eddy Current Testing (Al, Cu, Fe, Ni, Mg, Zn)
(a) Surface flaw detection
(b) Metallic coating thickness measurement
(c) Sorting of materials & Components
(d) Sub surface flaw detection
(e) Weld Testing
Surface Methods
Penetrant Testing (fluorescent & Visible)
i. Water Washable Method
ii. Solvent Removable Method
Magnetic Particle Testing (fluorescent & Visible)
i. Magnetic Flow Method
- Welded Joints
- Forgings
- Castings
- Other Machined Products
ii. Current Flow Method
- Welded Joints
- Forgings
- Castings
- Other Machined Products
Visual Methods
Visual Inspection of metals
(i) Welded Joints
- Aluminium Alloys
Ferrous Metals (incl. Stainless Steels)
(ii) Castings
- Aluminium Alloys
- Ferrous Metals
Welder Qualifications
Welding Qualification Examining Body Inspections required to verify compliance with the process for qualifying welders for fusion welding of steels in accordance with AS/NZS 2980
Welder qualifications in accordance with specifications such as:
- API 1104
- AS/NZS 1554 parts 1 to 6
- AS/NZS 1665
- AS/NZS 2980
- AS/NZS 3992
- ASME IX
- AWS D1.1 BS
- EN ISO 9606-1
- BS EN ISO 15609-1
- BS EN ISO 15614-1

